Freelance Full-Stack Web App Developer

We are looking for skilled Full-Stack Web App Developers to join the Tendem project and build interactive browser-based applications for real-world use cases. This part-time remote opportunity is ideal for professionals with hands-on experience in modern frontend frameworks, backend APIs, databases, and shipping interactive web products end-to-end.

What You Will Do

As a Full-Stack Web App Developer, you'll design, build, and refine browser-based applications with real logic, state, persistence, and user input — from habit trackers and budgeting tools to internal dashboards, mini-SaaS tools, and AI-powered apps.

Why It Might Be a Fit

This freelance role is ideal for professionals who can work independently, have a strong foundation in full-stack web development, and are comfortable with modern frontend frameworks, backend architecture, and building interactive browser-based applications end-to-end.

Requirements

• At least 3 years of relevant experience in full-stack web development or shipping interactive web applications
• Bachelor's or Master's Degree in Computer Science, Engineering, Information Technology, or related technical fields is a plus
• Strong command of JavaScript/TypeScript and at least one modern frontend framework
• Solid backend experience in Python (FastAPI, Flask, Django) and/or Node.js (Express, NestJS)
• Hands-on experience with relational databases (PostgreSQL, MySQL, SQLite) and basic schema design
• Experience implementing REST APIs, request validation, error handling, and authentication flows
• Familiarity with deployment platforms (Vercel, Netlify, Render, Fly.io, Railway, or similar)
• Comfortable with version control (Git) and basic testing practices
• Portfolio of shipped web applications
• English proficiency: Upper-intermediate (B2) or above

Benefits

• Work fully remote on your own schedule
• Apply your expertise to real-world technology projects
• Participate in performance-based bonus programs that reward high-quality work and consistent delivery
• Earn up to $60 per hour equivalent